import time
from machine import Pin

segmentos_pins = [
    Pin(28, Pin.OUT), Pin(27, Pin.OUT), Pin(26, Pin.OUT),
    Pin(22, Pin.OUT), Pin(21, Pin.OUT), Pin(20, Pin.OUT), Pin(19, Pin.OUT)
]

digitos_pin = [
    Pin(12, Pin.OUT), Pin(13, Pin.OUT), Pin(14, Pin.OUT), Pin(15, Pin.OUT)
]

# Botones con Pull-Up interno
up_btn = Pin(0, Pin.IN, Pin.PULL_UP)
down_btn = Pin(1, Pin.IN, Pin.PULL_UP)
set_btn = Pin(2, Pin.IN, Pin.PULL_UP)
reset_btn = Pin(3, Pin.IN, Pin.PULL_UP)

count = 0
debounce = 250
ult_up = 0

patron_segmento = [
    (1,1,1,1,1,1,0),  # 0
    (0,1,1,0,0,0,0),  # 1
    (1,1,0,1,1,0,1),  # 2
    (1,1,1,1,0,0,1),  # 3
    (0,1,1,0,0,1,1),  # 4
    (1,0,1,1,0,1,1),  # 5
    (1,0,1,1,1,1,1),  # 6
    (1,1,1,0,0,0,0),  # 7
    (1,1,1,1,1,1,1),  # 8
    (1,1,1,1,0,1,1)   # 9
]

# Extraer Miles, Centenas, Decenas y Unidades
def udcm(num):
    return [
        (num // 1000) % 10,
        (num // 100) % 10,
        (num // 10) % 10,
        num % 10
    ]

def up_intrr(pin):
    global count, ult_up
    now = time.ticks_ms()
    if time.ticks_diff(now, ult_up) > debounce:
        count = 0 if count >= 1000 else count + 1   
        ult_up = now


def down_intrr(pin):
    global count, ult_up
    now = time.ticks_ms()
    if time.ticks_diff(now, ult_up) > debounce:
        count = 1000 if count <= 0 else count - 1   
        ult_up = now

def set_intrr(pin):
    global count, ult_up
    now = time.ticks_ms()
    if time.ticks_diff(now, ult_up) > debounce:
        count = 500
        ult_up = now

def reset_intrr(pin):
    global count, ult_up
    now = time.ticks_ms()
    if time.ticks_diff(now, ult_up) > debounce:
        count = 0
        ult_up = now

# Registro de interrupciones
up_btn.irq(trigger=Pin.IRQ_FALLING, handler=up_intrr)
down_btn.irq(trigger=Pin.IRQ_FALLING, handler=down_intrr)
set_btn.irq(trigger=Pin.IRQ_FALLING, handler=set_intrr)
reset_btn.irq(trigger=Pin.IRQ_FALLING, handler=reset_intrr)


for d in digitos_pin: d.value(1) # Apagar dígitos
for s in segmentos_pins: s.value(0) # Apagar segmentos

while True:
    digits = udcm(count)

    for i in range(4):
        for d in digitos_pin:
            d.value(1)

        patter = patron_segmento[digits[i]]
        for j in range(7):
            segmentos_pins[j].value(patter[j])

        digitos_pin[i].value(0)
        time.sleep(0.004)